Explorers:
But why is it not breaking at the middle despite the heavy vehicles that will be plying it, because i can't see any support here.

F=ma...

force is equal to the product of mass × acceleration (due to gravity).

Those steel cables attached to the braces by the side of the bridge at specific intervals makes up for the equilibrium position of the places without pillar support...

The structural and civil engineers would have calculated the expansivity of the asphalt used, total tensile stress and strain against the force of gravity and mass of the total number of vehicles and their acceleration to manufacture the steel cables strong enough to compliment the weight and tip the total equilibrium position of the bridge to "balance"...


I'm just saying.